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What can go wrong if i accidently put e 10 in hyundai excel instead of recommended unleaded fuel only.

Posted by Ram Ashar on


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  • Hyundai Master
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Probably nothing. its only 10% ethanol and most cars are already running it these days. at least in the USA

Posted on Feb 06, 2019


5 Related Answers


  • 1 Answer

SOURCE: wrong fuel in car

Hi, My name is Tom and I need to get some info on your car. Make,year,engine type, how long it has been stored, was there any fuel in the car from before, was the old fuel drained, does the engine call for the good old leaded type? What is it that you think that you may have ruined? Tom.

Posted on Jan 15, 2009


Rishi Roshan Ali

  • 2427 Answers

SOURCE: by accident put the wrong fuel in tank

There is a bolt under the gas tank. You will need to go under your car to get to it. Once you loosen this bolt the fuel will drain out there. This is called a fuel dump hole, or a flush hole. It is located directly under the gas tank on the tank itself.

Another method, is

1.) remove the hose that is connected to your fuel filter. Its the one that's leads from your gas tank to your filter.

2.) place the end on this hose into a bottle or container

3.) turn on the ignition. The pump will run, pumping the fuel from the tank to the container.

There will still be some fuel in the filter as well as the engine. the fuel from the filter can be drained out , The one in the system will have to be burned out while the car is running after you put the right fuel in.

Posted on Feb 25, 2010

Testimonial: "that will be "all"? thank you! I'll try it out asap! greetz, Marc"

SOURCE: where is the fuel pump located on a 1989 hyundai

Turn the car on and listen for a sound resembling an electric motor running, which should stop after just a few seconds of having the key turned to acc (pre ignition) If nothing then you will have to drop the gas tank belts and pull the pump from the upper assymbly. I believe it is threaded normally and the fuel hoses can be removed with the ends taped to keep dust and dirt from making its way into your fuel system.
Check O'Reilys or Autozone for the pump


Posted on Jun 04, 2010

Testimonial: "thans a lot cheers....."


  • 3 Answers

SOURCE: what fuel is recommended?

The engine comes from japan, a daft statement but the engine was designed to run on unleaded petrol in japan and when they came to England we still ran fully leaded petrol the engine is quite happy on ether fuel the motor may be unsettled for a while but will stablise if you change over from one to the other.

Posted on Oct 12, 2010

tim fredrickson

  • 144 Answers

SOURCE: what will happen if i accidentally put unleaded

it will ping and spark knock when you get to half a tank add premium if you here it spark knocking just accelerate and it should go away watch the temp gauge to make sure it dont over heat dont continue using regular unleaded it can hurt your engine / spark knock is a double explosion in the piston chamber and can damage the piston and or valves

Posted on May 28, 2011

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although 99ron or 100ron is recommended, some uses unleaded for non-turbo and of course notice a sligth defference in performance using high ROM fuel.
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Unleaded premium gasoline with an octane
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Engine "knock" is not just an unusual sound - but over time can cause real damage to the engine. You *should* use fuels with the recommended octane levels, but if you choose to use fuel with a lower octane level due to reduce fuel costs - do not repeatedly use fuel that causes engine knock. Find the "sweet spot" between the cost of lower octane fuel and an octane level that does not cause knocking. Expect fuel economy and performance to drop with lower octane fuels, too.

Good luck!

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Wrong fuel in car

Hi, My name is Tom and I need to get some info on your car. Make,year,engine type, how long it has been stored, was there any fuel in the car from before, was the old fuel drained, does the engine call for the good old leaded type? What is it that you think that you may have ruined? Tom.

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